It's easy to freak out over the US stock market crash when you see a CNN front page like this:
And it is true that global stock markets have had a rough morning. The Dow fell 1,000 points in its first four minutes of trading Monday morning (although it has recovered a good deal since). Still, when you put that drop into context — as economist Justin Wolfers does — you realize that the drop pales in comparison to all the gains the market has made over the past decade.
The stock market plunge, in perspective. (10-year chart.) pic.twitter.com/M30thHhkrv— Justin Wolfers (@JustinWolfers) August 24, 2015
So, as the CNN homepage warns (in tiny font that you probably missed the first time): Don't panic. Definitely don't sell off your stocks. Perhaps visit this website. And remember that markets go up and down, and that in the decade-long scheme of things the market still has seen relatively robust growth.